Elevator-cup



UNITED STATES PATENT OFFICE.

WILLIAM F. BOSWE/LL, or JOPLIN, MISSOURI.

ELEVATOR-CUP.

SPECIFICATION formng part of Letters ?atentl\o. 529,698, .dated November 27, 1894.

. Application filed July 30, 1894. Serial No. 518,960. (No model.) A

T all whom it may concernx.

Be it known that I, WILLIAM F. BOSWELL, of the city ofJoplin, Jasper county, State of Missouri, have invented certain new and useful Improvementsin Elevator-Cups, of which has for its object the forming of an elevator cup from a single piece of sheet metal and constructng said cup with an integral reinforcing and wearing strip.

A further object of myinvention is to con- I 5 struct an elevator cup that possesses superior advantages in point of simplicity, durability and general efficiency.

Referring to the drawings: Figure 1 is a plan view of the blank from which my improvedelevatorcupisformed. Fig.2isavieW in perspective of my improved elevator cup, the same having been bentand riveted together as required for practical use. Fig. 3 is a longitudinal sectional view on the line 3-3 of Fig. 2. Y

In the construction of the device as shown, the numeral 1 designates a sheet metal blank from which the cup is formed, the same being substantially rectangular in form, the portion 0 2 constituting the front side of the cupand the portion 3 the rear side thereof. The portion 4 of the front side of the cup blank 2 is adapted to be bent directly backward in order to form the reinforcihg and wearing strip.

5 The front side has formed integral therewith the side wings 5, the same being constructed with the segmental lower edges 6 and also with the mating rivet holes or apertures 7.

The rear side 3 of the blank 1 is provided 4o with the integral wings 8, which are provided with the segmental lower edges 9 and the mating rivet holes or apertures 10. These wings 8 are also construoted with the inclined upper edges 11. The edgesof the blank 1 5 connecting the segmental base edges 6 and 9 incline toward the center, thereby forming the portions 12, and at the meeting points of these nclined edges are formed the triangular strengthening portions 13, the 'same being approximately in the longitudinal center of the blank 1.

formed by the wings 5 and S. which these portions 12 and 13 are bent are A plurality of rivet holes or apertures 14 are formed near the upper edge of the rear portion 3 and mating rivet holes or apertures 15 are formed near the upper edge of the front side 2 and in the center of the portion 4 that forms the reinf0rcing and wearing strip. A blank so formed has the portion 4 bent immediately backward until it contacts with the face of the front side 2 and is there securely riveted by means of suitable rivets 16 passing through the rivet holes 15. The point where this first bend is made is indicated by the dotted line A (Fig.1). The wings 5 and 8 that form the sides of the cup are now bent at a point indioated by the dotted lines B into a plano at right angles to the main bodyof the blank 1. This operation beingperformed, the blank is bent into anapproxirhate semi-circle, or until the rivet holes 7 and 10 co-incide. Said wings are now securely riveted together and the portions 12 and 13 bent at right ahgles to the main body po'rtion, or until they contact with thesides The lines on indicated by the letter C (Fig. 1). Thus the cup is formed with a reinf0rcing and wearing strip extending around its entire front. edge, or that edge upon which all of the strain and wear takes place.

deposit itself, or wedge in between the'strip and the front of the cup, thereby greatly widening the upper front edge of said cup, which greatly impedes the travel of the cup through thematerial which it is raising. By my improved construction of cup, these annoyances and difficulties are entirely overcome, there being but the solid rounded edge to contact with and pass through the grain, mineral, &c., th'lt is being raised. By bending up the portions 12 and 13 on the outside of the wings 5 and 8, the bottom of the cup is made very secure and any possibility of leal:-

age entirely preclnded. Thns it will be seen end strip 4 formed integral with the body 1 how I have formed a simple, durableand inand wings 5, and said strip 4 doubled back expensive elevator cup, one that is especially and riveted to the body porti0n, substantiall y strong and eflicient at its upper forward edge.- as shown and described.

What I claim is- In testimony whereof I afix my signature in 15 An elevator cup, constructed of a single presenceof two witnesses. piece of sheet metal comprising the body 1, WILLIAM F. BOSVVELL. sides formed by wings 5 and 8, triangular \Vitnesses: portions 13 on the sides of the body porti0n 1 J. E. LOV, 10 overlapping the side-wings 5 and 8, and an .TNO. C. HIGDON. 

